def setUp(self):
self.monitor = ChangeMonitor()
self.monitor.monitorClass(CategorizableCompositeObject)
self.obj = CategorizableCompositeObject(subject=u'Object')
self.list = ObservableList()
self.monitor.monitorCollection(self.list)
self.list.append(self.obj)
self.cat1 = Category(subject=u'Cat #1')
self.cat2 = Category(subject=u'Cat #2')
self.catList = ObservableList()
self.catList.append(self.cat1)
self.catList.append(self.cat2)
